Brick-mold-sanding machine



(No Model.) 6 Sheets-Sheet 1.

W. LAMB.

BRICK MOLD SANDING MACHINE.

No. 493,098. Patented Mar. 7, 1893..

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W. LAMB. BRIGK MOLD SANDING MACHINE.

No. 493,098. Patented Mam, 1893.

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(No Model.) '6 SheetsS'heet 3.

W. LAMB. BRICK MOLD SANDING MACHINE.

N0. 493,098. Patented Mar. 7, 1893. I W H W [H III I Q f- I 8 II \Q 6 DI NIHIHHIIIR 2 l "@IQ l I 5 I 1 II IF: I I I H I I P'll l 'I' F I I'IIIH o x II T I O I if H 'I Q, I I I Q l'' I I O .92 II F I I 5 3 w I QW w I I w I IIII u s bi NRARI Q Q Wl! m 3mm:

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(No Model.)

W. LAMB. BRICK MOLD SANDING MAGHINB.

Patented -Mar. 7,1893;

Hlllll I! WWI hm (5676M %W if \NO Model.) 6 Sheets-Sheet 5.

W. LAMB.

BRICK MOLD SANDING MACHINE. No. 493,098. Patented Mar. '7, 1893.

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(No Model.) 6 Shegts sheet e.

W. LAMB. BRICK MOLD SANDING MAOHINE.

No. 493,098. Patented Mar. '7, 1893.

1 THE NORR S Firms (:0. PNOTQLITHQ, wasumm'on. n. c.

NITED STATES PATENT OFFICE.

WILLIAM LAMB, OF ABERDEEN, SOUTH DAKOTA.

BRICK-MOLD-SANDINfi MACHINE.

SPECIFICATION forming part of Letters Patent No. 493,098, dated March 7,1893.

Application filed April 22, 1892. Serial No. 430.243. (No model.)

T0 or whom it may concern.-

Be it known that I, WlLLIAM LAMB, a citizen of the United States,residing at Aberdeen, in the county of Brown and State of South Dakota,have invented certain new and useful Improvements in Sanding-Machinesfor Brick-Molds; and I do hereby declare'the following to be a full,clear, and exact description of the invention,such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention has relation to improvements in machines for sanding themolds of brick machines, and it has for one of its objects to provide anautomatic, self-feeding, mold-sanding machine.

Another object of the invention is to provide a mold-sanding machineoperating in conjunction with a brick machine, adapted to automaticallyfeed the sanded molds to the said brick machine.

Another object of the invention is to provide a device for automaticallyfeeding the sanded molds to the brick-machine, embodying such aconstruction that should a mold become stuck in the brick machine (as isoften the case) it will ride over the mold which it is pushing, and uponits rearward stroke will throw said mold out of the sanding machine.

Another object of the invention is to provide a mold-sanding machine ofsuch construction that the molds Will be relieved of superfluous sandbefore being fed to the brickmachine.

Other objects and advantages will be fully understood from the followingdescription and claims when taken in conjunction with the accompanyingdrawings, in which:

Figure 1 is an elevation of one side of my improved machine. Fig. 2 is asimilar view of the opposite side thereof. Fig. 3 is a front, endelevation. Fig. 4c is a rear, end elevation. Fig. 5 is a top plan view,and: Fig. 6 is a longitudinal, central section taken in the planeindicated by the line wo: on Fig. 5.

In the said drawings, similar letters and figures designatecorresponding parts throughout the several views, referring to which:

A, indicates the base of my improved machine, which is preferably of ageneral rectangular form, as shown.

Rising from the rear corners of the base A, are the standards, B, whichserve in conjunction with the short, forward standards 0, to support theside walls D, of the sanding chamber E. The rear concave wall F, of thesanding chamber,which is preferably attached to the rear, curved edgesof the side walls D, as illustrated, is preferably formed fromboiler-steel, or the like, so as to enable it to withstand the frictionof the molds presently to be described.

Suitably connected to the side walls D, of

the machineand extending transverse thereof,

is a deflector wall G, which is pitched slightly rearwardly anddownwardly, as shown, and is designed, in practice, to lead thesuperfluous sand dumped from the molds back into the sanding chamberupon the molds therein.

Formed at the forward end ofthe machine and preferably extending thefull width thereof, as better shown in Fig. 3 of the drawings, is thestacking frame H, in which the molds to be fed to the machine are placedone upon the other.

Suitably mounted upon sub-standards, as I, and extending the full lengthof the machine and beneath the sanding chamber E, are the ways or tracksJ, in which travel the slide-blocks K, of the reciprocating carrierframeL, which is preferably of a rectangular form, as shown. 1

Loosely mounted upon a shaft L, carried by the carrier-frame L, is themold-engaging trigger M, which is also preferably of a rectangular formand has its forward end weighted so that it will resume its normalposition when it reaches the end of its forward stroke, as will behereinafter more fully described. The carrier-frame L,-is reciprocatedlongitudinally through the medium of a pitman N, by a transverse crank,drive shaft P, which is journaled in suitable bearings at the rear endof the machine, and is provided with a drive wheel Q, which ispreferably fixed on said shaft through the medium of a suitable clutch,whereby it will be seen that the machine may be readily stopped whendesirable.

Suitably mounted upon the upper ways or tracks J, are slide bars J,which extend to the lower edge of the rear, concave wall of the sandingchamber and serve to support the molds which are fed continuously tosaid chamber and conduct the same to the way formed between the curved,strips K, and the rear, concave wall F, which curved strips areconnected at their lower ends to the inner sides of the side walls D,and are connected at their upper ends to a transverse,vertically-disposed wall R, which is designed and adapted for a purposepresently understood.

Pivotally connected at their front ends to suitable parts of the mainframe and extending rearwardly adjacent to the lower edge of thetransverse concave wall F, are gravitating keeper arms a which arenotched or shouldered at or adjacent to their forward ends and aredesigned to engage the molds and prevent a rearward movement thereof.

From the foregoing description it will be readily perceived that ateachrearward stroke of the carrier-frame L, the trigger M, will engage thelower mold in the stacking frame, 11, and will carry said mold such adistance upon the slide bars J, that its forward, transverse edge willrest at the lower transverse edge of the concave wall F. Thus it will beperceived that inasmuch as the molds are fed continuously one will pushthe other, until the line of molds extends from the stacking frame H, tothe wall R, in the sanding chamher, as better illustrated in Fig. 6 ofthe drawings.

Journaled or pivoted at a suitable elevation in the ends of the stackingframe H, are feeding wings S, which are designed and adapted tosupportthe tier of molds in the stacking frame H, and automatically feedone at a time upon the slide bars J, ready to be engaged and moved bythe carrier-frame upon its rearward stroke.

Loosely connected to the feeding wings S, at an intermediate point inthe length there- 'of, are pitmen a, which are pivotally c011- nected attheir lower ends to the end crankbranches 1), of a transverse rock-shaftc, which isjournaledinsuitablebearings,asillustrated. This transverserock-shaft c, is provided at an intermediate point in its length with acrank branch d, to which is pivotally con nected one end of a rearwardlyextending slide bar 6, which is provided at its rear end with an angularbranchf, as better shown in Figs. 2 and 4:, of the drawings.

Fixedly mounted upon the drive shaft is a cam g, which is designed andadapted to engage the angular branch f, of the slide bar e, and drawsaid bar rearwardly, rock the shaft 0, and throw the feeding wings S,into engagement with one of the molds in the stacking frame. The cam g,is so situated upon the drive shaft P, with respect to the crank branchthereof, that it will engage the branchf, of the slide bar e, upon thecommencement of the rearward stroke of the carrier-frame L, so that thewings S, will support all of the molds except the lower one, and will bedisengaged from said branch f, during the forward stroke of saidcarrier-frame, whereby the wings S, by reason of their weight, will fallinto a perpendicular position and will allow one mold to fall upon theslide bars J, ready to be engaged by the trigger M, of the carrier-frame L, upon the next rearward stroke of said frame L.

Carried by a rock-shaft T, journaled in the side walls D, immediatelyabove the crossbar R, is an open-work swinging leaf U, which is designedto receive the molds from the ways formed by the concave wall F, and thecurvilinear strips K, and swingdownwardlytoward the front of the machinefor a purpose presently set forth.

Journaled in the side walls D, at about the proportional distanceillustrated, in advance and beneath the horizontal plane of the rockshaft T, is a rock-shaft V, which is bent inwardly and upwardly betweenthe walls D, as illustrated to form a bail M, the transverse branch ofwhich lies against the rock-shaft T, when the leaf U, is at rest, butswings upwardly and forwardly after the leaf U, has swung downwardly andforwardly, and serves to swing the mold from the said leaf U, to anotheropen-work,swinging leaf W, carried by a rock-shaft V, which is journaledin the side walls D, as illustrated. This leaf WV, which is providedwith a ledge upon its rear edge normally rests in a horizontal-obliqueposition, as illustrated, ready to receive a mold from the leaf U, butafter the mold is in position upon said leaf W, it is moved into ahorizontal position through the medium of mechanism and for a purposepresently to be described. As better illustrated in Fig. 6 of thedrawings, the downward movements of both leaves U, and W, are limited;the leaf U, by a longitudinal bar m, and the leaf WV, by a transversebar a.

The shafts T, and W, are respectively provided with crank arms orbranches t, and w, the ends of which are connected by a link 2), asillustrated, by reason of which it will be perceived that the saidshafts will be simultaneously rocked in opposite directions.

Fulcrumed at an intermediate point in its length to one of the standardsB, or other part of the main frame of my improved machine, is a lever P,which has its forward end connected by a link X, with the end of thecrank arm or branch to, of the rock shaft W, as shown. The rear end ofthis lever P, is designed and adapted to be engaged and depressed by acurvilinear cam Q, upon the drive shaft P, whereby it will be perceivedthat the leaves U, and W, will be raised.

As better illustrated in Fig. 1 of the drawings, the rock shaft V, isprovided upon one end with a crank arm or branch a, to which isconnected one end of a link I). The opposite end of this link Z), isconnected to the forward end of a lever T, whichis preferably fnlcrumedat the same point as the lever P, and is designed and adapted to beengaged by a cam S, which is so fixed upon the drive shaft P, that itwill engage the rear end of ICC said lever T, immediately'after thelever P is disengaged from the curvilinear cam, Q. As soon as the leverP, is disengaged from the cam Q, the leaves U, and W, by reason ofgravity, will assume and rest in opposite oblique planes, when the camS, upon the drive shaft P, will engage and depress the rear end of thelever T, and, through the medium of the mechanism described, will rockthe shaft V, and raise the bail M, which, swinging forwardly, will liftthe mold from the leaf U, and deposit the same upon the leaf W, when thecam Q, will engage the rear end of the lever P, and will raise the leafW, together with the leaf U, into horizontal positions.

Rising from the side walls D, on opposite sides of the leaf W, arestandards 0, upon which are mounted the transversely extending tracks 3,which preferably extend laterally from one side of the machine, asillustrated.

4, indicates a carriage body which is designed and adapted to travel onthe tracks 3, and is provided on opposite sides with friction rollers 5,which bear uponthe upperand lower sides of said tracks and render themovement of the carriage easier. This carriage body 4, is provided withtwo downwardly and forwardlyextending curvilinear arms 6, which arebraced at an intermediate point in their length by the hangers 7, andare designed to support the mold pushing shoe 9, which is pivotallyconnected to and depends from the same.

Pivotally connected to the mold pushing shoe 9, and extending rearwardlyand upwardly therefrom is a curvilinear bar 10, which takes through avertically disposed slot in the carriage body 4, and is provided at itsupper end with a weight 11, as shown. This weight 11, is, in practice,of such a size that it will hold the shoe 9, in a perpendicular positionand in engagement with the end of a mold and will render said shoesufficiently rigid to push the mold so long as no obstruction is offeredto the same. However, if an obstruction is offered to the mold pushed bythe shoe 9, such as the preceding mold becoming stuck in the brickmachine, the

said shoe 9, will swing rearwardly and ridev over the mold it has beenpushing.

Pivotally connected to and extending above and below the curvilineararms 6, adjacent to the rear ends thereof, are gravitating fingers 12,which will ride over an obstructed mold upon the forward movement of thecarriage, but will engage said mold upon the rearward movement of saidcarriage and throw the same off the opposite side of the machine. Thusit will be readily perceived that though the operation of the machine iscontinuous, it will be prevented from choking or otherwise damaging thebrick machine in conjunction with which it operates.

Fixedly connected to the upper end of a vertical shaft 13, which isjournaled in suitable bearings and preferably rests in the same verticalplane as the drive shaft P, is an to connect one end of the arm 14, andone end of a link 17,which is pivotally connected at its opposite end tothe carriage body 4, as illustrated. By the provision of the series ofapertures 15, in the 'furcated end of the arm 14, it will be readilyperceived that the link 17, may be connected to said arm at variouspoints so as to increase or diminish the length of travel of thecarriage 4.

Fixed upon the Vertical shaft 13, above the drive shaft P, is ahorizontal, mutilated gear-wheel 18, which, when the carriage 4, is atrest, is designed to rest in the position illustrated in Fig. 5, of thedrawings. This gearwheel 18, which is preferably beveled on itsunderside as shown, is provided withalarge or wide tooth 19, which isarranged between a smaller rear tooth 20, and a smaller forward tooth21, which are arranged at about the proportional distance illustrated,apart.

22, indicates a mutilated gear which is mounted upon the drive shaft P,and is provided with two teeth 23, 24, which are pref-- erably arrangedthe proportional distance, illustrated, apart. This gear wheel 22, is sofixed upon the shaft P, with respect to the cam Q, thatits forward tooth23, will engage the rear side of the tooth 19, of the gearwheel 18, atthe same time or immediately after the said cam Q, engages the rear endof the lever P, whereby it will be perceived that the leaf W, will be inits horizontal position with a mold, when the carriage 4, commences tomove across the machine. The carriage 4, is moved entirely across themachine in one direction by the teeth 23, and 24, of the gear wheel 22,

engaging the teeth 19, and 20, of the gear wheel 18; and the saidcarriage 4, is moved entirely acrossthe machine in the opposite.

direction by the short tooth 25, of the gear wheel 26, engaging theforward edge of the tooth 19, of. the wheel 18, and the tooth 27, ofsaid wheel 26, engaging the tooth21, of said wheel 18. The wheel 26, isso fixed on the drive shaft P, with respect to the wheel 22, and theteeth of the wheel 18, that it willnot engage the said wheel 18, untilthe carriage 4, has arrived at the forward end of itsstroke or movement.8

Suitably mounted at the forward edge of the concave-wall F, of thesanding chamber, are the brushes V which are preferably of theproportional width and length illustrated and are designed in practiceto prevent the sandfrom escaping from the sanding chamber at the ends ofthe train of molds.

In operation, the molds are stacked .or piled one upon the other in thestacking frame H,

when the brick machine and the sanding ma 4, through the mechanismdescribed, is caused to move in the direction of the arrow as; and; aswill be readily perceived the said carriage 4, will move or travelforwardly and rearwardly during the rearward movement of thecarrier-frame L. By having the leaves U, and W, of open-work, it will bereadily perceived' that all superfluous sand in the molds will be;allowed,through the medium of the deflector wall G, to return to thesanding chamber.

Although I have specifically described the construction and relativearrangement of the several elements of my improved machine,

yet I do not desire to be confined to the same, as such changes ormodifications may be made as fairly fall within the scope of myinvention.

Having thus described my invention, what I claim, and desire to secureby Letters Patent,

1. In a mold sanding machine, substantially as described, thecombination with the sanding chamber having the concave wall, and asuitable means for feeding molds continuously to the lower edge of saidwall; of the swinging leaves U, and W, carried by rock shafts journaledin the side walls of the sand ing chamber, the bail M, journaled in theside walls of the sanding chamber between the shafts of the leaves U,and W, the drive shaft, mechanism intermediate the drive shaft and theshafts of the leaves U, and W, adapted to swing said leavessimultaneously, mechanism intermediate the drive shaft and the shaft ofthe bail M, adapted to swing said bail alternately with respect to theleaves U, and W, and a suitable means for removing a mold from the leafW", when the same has assumed a horizontal position substantially as andfor the purpose set forth.

2. In a mold sanding machine, substantially as described, thecombination with a sanding chamber, the swinging leaves U, and W,journaled in the side walls of said chamber, a suitable means forfeeding the sanded molds to the leaf U, and a suitable means foractuating the leaves U, and W; of the swinging bail journaled in theside walls of the sanding chamber intermediate the leaves U, and W, anda suitable means for actuating said bail alternately with respect to theleaves U, and NV; substantially as and for the purpose set forth.

3. In a mold sanding machine, the combination with the sanding chamber,the stacking frame, with molds arranged therein one upon the other, andhaving the feeding wings pivoted at a suitable elevation in its ends, ofthe carrier frame, the tracks arranged below said sanding chamber withsliding blocks thereon, the mold engaging trigger pivotally mounted inthe carrier frame, and having its lower end weighted, and suitable meansfor reciprocating the carrierframe, substantially as and for thepurposes specified.

4-. In amold sanding machine,substantially as described, the combinationwith the sand ing chamber, the stacking frame, the slide bars or tracksextending from the sanding chamber beneath the stacking frame, and thecarrier-frame mounted on the slide bars or tracks and having a triggeradapted to engage the lower mold in the stacking frame; of the feedwings pivotally mounted in the ends of the stacking frame, the driveshaft, mechanism intermediate the drive shaft and the carrier-frameadapted to reciprocate the latter, and mechanism intermediate the driveshaft and the feeding wings adapted to swing said wings inwardly duringthe rearward stroke of the carrier-frame, and allow said wings to assumea perpendicular position during the forward stroke of said frame;substantially as and for the purpose set forth.

5. In a mold sanding machine, substantially as described, thecombination with the sanding chamber, the stacking frame and the slidebars or tracks extending from the sanding chamber beneath the stackingframe; of the carrier-frame mounted on the slide bars or tracks andcarrying a trigger adapted to engage the molds in the stacking frame, asuitable means for reciprocating the carrier frame, and therearwardly-extending, gravitating keeperarms a adapted to engage themolds and prevent a backward movement thereof; all substantially asspecified.

6. The combination with the main frame, the transverse concave wall F,and the stacking chamber, ,of the gravitating keeper arms pivotallyconnected at their front ends to the main frame and extending forwardlyof the wall F, said arms being notched or shouldered at or adjacent totheir forward ends thereby engaging the molds and preventing a rearwardmovement thereof, substantially as specified.

7. In a mold sanding machine, the combination with a sanding chamber,and a suitable means for supporting the molds after the same have beensanded; of the carriage body 4, mounted on tracks above the sandingchamber, and having a vertically-disposed, longitudinal slot, the arms6, connected to and extending forwardly from said body, the shoepivotally mounted in said arms, the arm connected to the shoe and takingthrough the slot in the carriage body, a weight mounted upon the upperend of said arm, and a suitable means for reciprocating the carriage;substantially as and for the purpose set forth.

8. In a mold sanding machine, the combination with a sanding chamber,and a suitable means for supporting the molds after the same have beensanded; of the carriage body 4, mounted on tracks above the sandingchamber, and having a vertically-disposed, longitudinal slot, the arms6, connected to and extending forwardly from said body, the shoepivotally mounted in said arms, the arm connected to the shoe and takingthrough the slot in the carriage body, a weight mounted upon the upperend of said arm, the gravitating fingers 12, pivotally connected to thearms 6, and extending above and below the same, a suitable means forlimiting the rearward movement of the upper ends of said fingers, and asuitable means for reciprocating the carriage; substantially asspecified.

9. In a mold sanding machine, substantially as described, thecombination with the sanding chamber having the concave wall F; of thebrushes V mounted at the forward edge of the concave walladjacent to theside walls of the chamber; substantially as and for the purposespecified.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM LAMB. Witnesses:

C. W. HERMANCE, JOHN AOKLEY.

